Disk cultivator



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V J. ALBERTSON.

DISK GULTIVATOR.

N0."400,42Z. Patented Apr. 2, 1889.

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(No MoaLj A J. ALBERTSON. DISK GULTIVATOR. Ila-400,422. Patented Apr. 2, 1889.

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JOSEPH ALBERTSON, OF CHICAGO, ILLINOIS.

DISK CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 400,422, dated April 2, 1889.

. A Application filed ay 5,1888. Serial No. 272,948. (No model.)

To all whom it may concern.-

Be it known that I, J OSEPH ALBERTSON, a cltizen of the United-States, residing at Ohicago, 1n the'county of Cook and State of Illinois, have invented certain new and useful Improvements in Disk Cultivators, of which the following is a specification.

This invention relates to wheel-plows; and Its ob ect is to provide a plow of this class I possessing advantages in point of simplicity,

inexpensiveness, durability, and general efficlency.

In the drawings, Figure 1 is a perspective V ew of a wheel-plow embodying my inven- I 5 t1on. Fig. 2 is atop or plan View. Fig. 3 is a bottom or inverted plan view. Fig. 4 is'a s de elevation. Fig. ,5 is a front end elevation. Fig. 6 is a rear end elevation. Fig. 7 1s a detail sectional view taken through the zotfront end of the carrying-frame. Fig. 8 is a similar view taken through a section of one of the side bars of the frame.

Corresponding parts in-the figures are denoted by the same letters of reference.

Referring to the drawings, A designates the frame, preferably triangular in shape and comprising side bars, a a, connected at their front ends by a metallic block, B, carrying a clevls, b, and at their rear ends by a crossbeam, or.

Upon the upper side of the beams a are provided, near the front and rear ends, oppo- V sitely-disposed bearing-blocks D D for axles E E. These axles are provided outside of the 3 5 bearings with crank-arms e 9, upon the ends of which are mounted carrying-wheels F F- Rigidly secured to the main portion of the axles are levers G G, having spring-actuated clutches g g, engaging notches h in segmental o rack-bars H H, whereby the frame can be adusted to any desired height to regulate the plows.

Along the lower face of the side beams are preferably secured metallic plates I I, each provlded with a series of downwardly-proectlng lugs, 'i, the faces of which are at a slight angle to the line of travel of the machine. Pivoted to each of these lugs is a plow, J, consisting of a concavo-convex d' having a sharp cutting-edge, the lugs bei g so disposed that the front edge of one disk is on a line with the rear of the next disk in the rear. These disks as the machine advances are adapted to cut a furrow, the rear of the inner or concave side turning the soil over. They are also adapted to cut up all weeds, stalks, &c., with which they come in contact.

K designates a bull-tongue plow, which is located centrally at the front end of the machine in front of the two series of disks, which cuts a deeper .furrow than the disks, and thereby lessens the work to be accomplished by them. The standard is of the plow passes through an eye in the block B, and upon its upper end is disposed a lever, L. This lever is provided with a spring-actuated clutch, Z, engaging one of a series of notches, m, in a horizontally-disposed segmental rackbar, M, whereby the plow may be turned quickly to change the course of the machine, and is retained in adjusted position by the engagement of the clutch with one of the notches in the rack-bar.

A seat, N, is provided upon the machine for the operator, accessible to the operating-levers.

If desired, I may employ a series of harrow teeth, 0, as shown in Fig. 6, which are adapted to harrow the ground after it has been furrowed.

I claim as my invention- 1. The combination, with the triangular frame, of a plow at the point of intersection of the longitudinal beams of said frame, provided with a bearing portion journaled in a block, B, a lever for adjusting the plow rigidly secured to the upper end of said bearing portion and at right angles thereto, and a horizontally disposed segmental rack bar adapted to be engaged by a clutch upon the lever to retain the plow in adjusted position, substantially as and for the purpose set forth.

2. The herein-described plow, comprising the triangular frame carrying rotatable disks,

the horizontally and transversely disposed axles having bearings thereon, crank-arms at the ends of said axles having carrying-wheels mounted thereon, levers rigidly secured to the axles and at right angles thereto, verticallydisposed segmental rack-bars adapted to be engaged by clutches upon the levers to retain the axles in adjusted position, a plow at the operated substantially as and for the purpose TO front end of the frame having a vertical bearset forth. ing; portion, an adj listing-lever rigidly secured In testimony whereof I affix my signature in to the latter at right angles thereto, ahorizon- I presence of two witnesses.

5 tally-disposed segmental rack-bar adapted to TOgEPH AT BFRTQQY be engaged bya clutch upon said lever to re- 1 J L tain the plow in adjusted position, a seat \Vitnesses: upon the frame, and a elevis at the front end 1. J. SCHREINER,

l l of the latter, all arranged and adapted to be l A. F. NARTEN. 

